my friend did something similar when we were on a trip. me and another friend were doing dumb shit and making her laugh. she started choking on her food and had to pee at the same time and so she tried telling us to stop, but we didnt understand and kept going. so now she runs to the bathroom a few feet away and not even 10 seconds later it sounds like she was expelling a demon from her esophagus it was absolutely hilarious. all it takes is for one of us to recreate the sound to send us all into hysterics